Sidney smith



S. SMITH.,

Heating Stove.

No. 63.9562 .Patented April 16, 11867.

N. Ferias, Phnxo-Lnmgnphar, wnhingmr ne .uiten taies datent @frn Lef/ers Patent 1Y0, 63,950, lated April 16, 1867.

FIRE-CHAMBER POB. FUBNAGES.

@its Sulphnlc nient in ,in tlg-cse glitters ntuit mit milking pari nt tige stime.

ALL WHOM I'JIMAY CONCERN:

Be it known that I, SIDNEY SMITH, of Worcester, in the county of Worcester, and Stato of ldassachusettsl have invented a new and useful Improvement in Fire-Chambers for Furnaces; and I do hereby declare the following to be a `full, clear, and exact description et' the saine, reference being hadV to the accompanying drawings, in which- Figurel is a perspective view of my tire-chamber.

Figure 2 is a vertical cross-section of `the same.

.Figure 3 is a horizontal section.V

`My invention relates to the construction of a re-chamber for extensiveheating purposes in connection with the Warming of buihdings, generating steam, Sic., Ste., 4by lcombustion ot' fuel according to the principles set forthiin my patent of July 31,1865. And its nature consists in, rst, the manner of constructing the inner wall of the fire-chamber so as to be adapted to the burning of either wood or coal, and so that the tendency ot' iron plates to warp when exposed to intense heat may be neutralized; second, in constructing the fire-chamber so, that it may be removed entire from the casing or frame which supports it for purposes of repair; third, in the manner of closing the bottom of the chamber. i

l 'That others may understand the construction aud operation of my invention, I will, more particularlydescribe it.

The casing or framework A which supports and encloses the fire-chamber may be of any desired form or material, as may be required by the circumstances of any special location. The casing exhibited in this application is to be regarded simply as a practicable form in which the apparatus may be constructed, but Ido not confine myself to any of the exhibited details of this kpart of my invention. For the principles underlying the construction of my fire-chamber, and embracing my system of producing combustion, I malte reference to my patent dated July 31, 1866. The second part of my invention herein set forth, however, does not exclusively pertain to a fire-chamber constructed in accordance with the principles therein set forth. My fire-chamber consists of an inner wall, composed of the cast-iron staves B B, and two or three surrounding jackets C C1 C2. These all rest upon thc bottom plate D, and are covered by the top plate E, so that there are enclosed air-spaces between thesejackets, and between thejacket C and the stavcs B. Outside of the jacket CZ is an air-chamber enclosed by the casing A, and having access to the external air through the perforations F in the plateiD. At the bottom of the fire-chamber is the trap G, through which ashes and cinders are permitted to escape; this trap is held up in place by the arm II attached to theA ratchet-shaft I, or by means of some other convenient device. The bottom plate D, and tcp plate E, are secured together by bolts and screws, so that with their included staves, jackets, Sie., they` form a. complete structure independent and separate from the case A. The front plate J is made separate from the Vremainder of the casing, and is.only secured to it by means of hooks,

screws, or other convenient contrivances, so that it may readily be removed when it is desired or necessary to l remove the fire-chamber for repairs, or otherwise. The rollers K K are inserted in the bottom plate L ofv the casing, and the bottom plate D of' the fire-chamber rests upon them. rIhey are in number sufficient to form a completetrack way upon which the fire-chamber will travelin passingju and out of the casing A. The staves `iB are made of `cast iron, and upon one rear edge I'malie a rebate,` and upon the other a flange, so that when they are placed properly in the fire-chamber thc rebate of one fit-s over the flange of the other, and they thus afford each other mutual assistance in resisting the eiccts of expansion and contraction, and the warping etfect of heat. 'Ihcse staves are groovcd upon their inner sides and are perforated with a large number of small holes, which are smallest at their orice iuthe inner surface of the stave. It' this chamber is designed for the combustion of wood, the staves may pass from top to bottom, presenting the same surface, but if itis designed for the ccmbustipn of coal, it is necessary that their lower Vportions should be protected by ire-bricl This I do by casting those str-wes with a recess, as at liI, into which tire-brick are to be introduced and secured. The ledge N also al'ords facility for securing fire-brick or fire-clay around the lowerportion of the {ire-chamber below the edges of the {irc-brick. ',lhe jackets C 0"@2 are constructed ot' sheet metal, finely perforatedb'y punching or otherwise. I deem it advantageous to perforate these jackets with diterent degrees of `nen'ess, the coarser perforations being in the inn'eriuostjaeket (l.

smo 2 Having described my invention, what I claim as new, and desire to secure by Letters Patent, s The cast-iron perforated anged and rebated staves B,.for the purpose of formingl a regchamber, substantially in the manner-set forth.

. A re-cbamber constructed substantially in the manner described, so as to be removable entire from'the frame or casing supporting it, for the purpose set forth;

In combination witll the trap G, the arm H, and ratchet-sliaftI, substantially as and for the pur'posc' set forth.

Inl combination with the fire-chamber claimed in the 'second claiin, tbc rollers Kfsubstantially as and for the purpose described. v In combination with the fire-chamber claimed in the second clainl, the removable front J, substantially as and for the purpose set forth.

SIDNEY SMITH.

Witnesses:

W. J. HAPGooD, GEO. F. LEE. 

